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<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <div id="app">
    <header></header>
    <main>
      <div class="title">
        <b class="active">标题1</b>
        <b>标题2</b>
      </div>
      <div class="con">
        <div class="active">123</div>
        <div>地图</div>
      </div>
    </main>
    <footer></footer>

  </div>
</body>

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